Osa Weather (Next 3 days): The snow forecast for Osa is: Mild with light rain (total 3.0mm) on Mon night Becoming colder with a light covering of snow, mostly falling on Wed afternoon. Freeze-thaw conditions (max 8°C on Mon afternoon, min -7°C on Wed night). Winds increasing (light winds from the NNE on Tue night, strong winds from the WNW by Thu morning).
Osa Weather (Days 4-6): A light covering of new snow, mostly falling on Fri night. Temperatures will be below freezing (max -1°C on Sun morning, min -6°C on Thu afternoon). Winds increasing (light winds from the W on Fri night, strong winds from the WNW by Sat afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 4 |  | ||||
| Bottom Lift: | 8 | |
Latest snow reports near Osa:
Mon 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  | | | | | | | | | | |
light rain | snow shwrs | light snow | snow shwrs | some clouds | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | 1 | 2 | 1 | 2 | 2 | 1 | — | — | 4 | 1 | 1 | — | |
1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 8 | 3 | -2 | -2 | -4 | -1 | -2 | -5 | -6 | -5 | -5 | -2 | -3 | -2 | -3 | -4 | -4 |
min °C | 5 | 0 | -2 | -4 | -5 | -2 | -4 | -7 | -7 | -6 | -6 | -4 | -4 | -5 | -3 | -5 | -5 |
2 | -6 | -8 | -10 | -10 | -10 | -13 | -17 | -17 | -14 | -14 | -12 | -11 | -11 | -11 | -14 | -14 | |
81 | 89 | 91 | 85 | 77 | 89 | 89 | 80 | 86 | 88 | 87 | 84 | 78 | 95 | 85 | 78 | 79 | |
1650 | 950 | 350 | 350 | 0 | 450 | 400 | 0 | 0 | 0 | 0 | 0 | 300 | 0 | 300 | 0 | 0 | |
 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:13 | — | — |
 | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — |
Mild with light rain (total 3.0mm) on Mon night Becoming colder with a light covering of snow, mostly falling on Wed afternoon. Freeze-thaw conditions (max 8°C on Mon afternoon, min -7°C on Wed night). Winds increasing (light winds from the NNE on Tue night, strong winds from the WNW by Thu morning).
A light covering of new snow, mostly falling on Fri night. Temperatures will be below freezing (max -1°C on Sun morning, min -6°C on Thu afternoon). Winds increasing (light winds from the W on Fri night, strong winds from the WNW by Sat afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 11 Jan 2026 |
| Snow Alerts | Create Alert |
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.3 | Powder days Fresh snow, limited sun, any wind. |
0.3 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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